https://github.com/raigorx/promises-js

https://github.com/raigorx/promises-js

async await educational example promises setinterval settimeout tutorial

Last synced: 8 days ago
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• Host: GitHub
• URL: https://github.com/raigorx/promises-js
• Owner: raigorx
• License: gpl-3.0
• Created: 2024-06-09T10:24:21.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-06-10T00:47:23.000Z (5 months ago)
• Last Synced: 2024-06-10T11:49:34.551Z (5 months ago)
• Topics: async, await, educational, example, promises, setinterval, settimeout, tutorial
• Language: JavaScript
• Homepage:
• Size: 20.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Overview

This script demonstrates how to work with promises and `setTimeout`/`setInterval` functions in JavaScript, utilizing an `AbortController` to manage and cancel asynchronous operations. It includes functions to create delays, cancel them, and sequence tasks while handling the complexities that arise from using raw `setTimeout` and `setInterval`.

## Live demo

[Live Demo](https://raigorx.github.io/Promises-JS/)

### Task Functions

- **zero()**: Demonstrates cancellation with a 0 delay.

- **one()**: Shows the effect of catching errors from abort and continuing normal flow.

- **two()**: Explains how `setTimeout` and `setInterval` behave when cancelled.

- **three()**: Illustrates conditional execution based on `shouldSleep`.

- **four()**: Demonstrates the race condition where sleeps never execute due to quick changes in `shouldSleep`.

- **five()**: Shows how throwing an exception cancels function execution.

- **six()**: Demonstrates handling promises and extracting resolved values using both `await` and `.then()` with `setTimeout`.

- **seven()**: Demonstrates using `try/catch` with `await` and `.catch` with promises to handle errors.